SOLAR-X-3NM+ is a compact, self-contained solar LED marine lantern engineered for reliable aids-to-navigation lighting without any wiring or external power. Its integrated solar panel and rechargeable lithium battery deliver dependable dusk-to-dawn operation, while the daylight sensor and magnetic switch make deployment and storage effortless. Users can fine-tune power, range and flash character through a Bluetooth 5.0 app, and optional GNSS synchronisation keeps multiple lanterns flashing in perfect step. Built to withstand harsh coastal and offshore conditions, it is ideal for inland rivers, harbours, channel markers and light buoys.